Magnetic resonance imaging of hepatocellular carcinoma in Long-Evans Cinnamon rats under a magnetic field of 7.05 T

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概要

• 論文の詳細を見る

• Magnetic resonance (MR) images of livers in 3-, 12- and 29-month-old Long-Evans Cinnamon (LEC) rats (male) were taken under a magnetic field of 7.05 T. MR images of sagittal and transversal sections were obtained in 1-mm-thick slices by T_1-weighted and two-dimensional Fourier transformation techniques. The data matrix size was 256 phase-encoded steps. Each image was obtained through four acquisitions. Three-month-old rats gave MR images with low signal intensity over the liver probably due to the shorting of its T_1 and T_2 relaxation times. However, 12-month-old rats gave hyperintense regions around hepatic veins in right hepatic lobe, which was assigned to hepatocellular carcinoma. In 29-month-old rats, MR images with hyperintensity throughout the hepatic lobe were observed. These MR images, therefore, suggested that hepatocellular carcinoma in LEC rats developed from the restricted regions surrounding hepatic veins. In the present study, T_1-weighted MR imaging under a magnetic field of 7.05 T was shown to be applicable to the diagnosis of hepatic cancer in LEC rats.

• 北海道大学の論文
• 1997-11-28

著者

• KON Yasuhiro

  Laboratory of Experimental Animal Science, Graduate School of Veterinary Medicine, Hokkaido Universi

• 浅沼 武敏

  北海道大学大学院獣医学研究科環境獣医科学講座放射線学教室

• KASAI Noriyuki

  Institute for Animal Experimentation, Tohoku University Graduate School of Medicine

• Kasai Noriyuki

  東北大学医学部附属動物実験施設

• Kasai N

  Institute For Animal Experimentation Tohoku University Graduate School Of Medicine

• Kasai Noriyuki

  Tohoku Univ. Graduate School Of Medicine Sendai Jpn

• Kon Yasuhiro

  Laboratory Of Anatomy Department Of Biomedical Sciences Graduate School Of Veterinary Medicine Hokka

• Kon Yasuhiro

  Lab. Of Anat. Grad. Sch. Vet. Med. Hokkaido Univ.

• Kasai Noriyuki

  Institute For Animal Experimentation Hokkaido University School Of Medicine

• KUWABARA MIKINORI

  Laboratory of Radiation Biology, Graduate School of Veterinary Medicine

• Kuwabara Mikinori

  Laboratory Of Radiation Biology Department Of Environmental Veterinary Sciences Graduate School Of V

• Asanuma Taketoshi

  Laboratory Of Radiation Biology Department Of Environmental Veterinary Sciences Graduate School Of V

• Asanuma Taketoshi

  Laboratory Of Radiation Biology Department Of Environmental Veterinary Medicine Graduate School Of V

• Asanuma Taketoshi

  Depertment Of Radiation Biology Faculty Of Veterinary Medicine Hokkaido University

• Kuwabara M

  Hokkaido Univ. Sapporo Jpn

• HIRANO Yoshiko

  Laboratory of Radiation Biology, Department of Environmental Veterinary Sciences, Graduate School of

• OHKURA Kaori

  Laboratory of Radiation Biology, Department of Environmental Veterinary Sciences, Graduate School of

• SHIMOKAWA Shigezou

  Faculty of Engineering, Hokkaido University

• Ohkura Kaori

  Laboratory Of Radiation Biology Department Of Environmental Veterinary Sciences Graduate School Of V

• Hirano Yoshiko

  Laboratory Of Radiation Biology Department Of Environmental Veterinary Sciences School Of Veterinary

• Shimokawa Shigezou

  Faculty Of Engineering Hokkaido University

• Yasui Hironobu

  Laboratory Of Radiation Biology Department Of Environmental Veterinary Sciences Graduate School Of V

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